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Dive into the research topics where Krishna K. Singh is active.

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Featured researches published by Krishna K. Singh.


Surgical Endoscopy and Other Interventional Techniques | 2006

Mirizzi syndrome: laparoscopic management by subtotal cholecystectomy.

A. Rohatgi; Krishna K. Singh

BackgroundThe authors present their experience with laparoscopic subtotal cholecystectomy for the management of Mirizzi’s syndrome and their review of the literature.MethodsOver a period of 24 months, five cases of Mirizzi’s syndrome were encountered, representing 1.5% of all the laparoscopic cholecystectomies performed in the authors’ unit. The sex ratio was 4 females to 1 male, and the mean age of the patients was 66 years. All underwent a subtotal cholecystectomy.ResultsAll procedures were completed laparoscopically. Morbidities involved one case of biliary peritonitis and a one case of biliary leak requiring endoscopic stenting.ConclusionMirizzi’s syndrome cannot always be anticipated on the basis of preoperative staging, and often is encountered during the procedure. The “anatomic scenario” of this condition should be suspected for patients presenting with conditions such as empyema or mucocoele when there is a likelihood of stone impaction in the infundibulum of the gallbladder. Subtotal cholecystectomy with secure intraperitoneal biliary drainage appears to be a safe option for these patients.


Surgical Endoscopy and Other Interventional Techniques | 2012

Laparoscopic Nissen fundoplication with or without short gastric vessel division: a meta-analysis.

Kamran Khatri; Muhammad S. Sajid; Robert Brodrick; M. K. Baig; Mazin Sayegh; Krishna K. Singh

ObjectiveThe aim of this work is to systematically analyse the prospective randomised controlled trials on laparoscopic Nissen fundoplication (LNF) with and without short gastric vessel division (SGVD) for management of gastro-oesophageal reflux disease (GORD).MethodsAfter an extensive literature search, all previous trials on laparoscopic Nissen fundoplication with and without SGVD for management of GORD were assessed. Those meeting study quality criteria were analysed to generate summative data expressed by standardised mean difference (SMD) and risk ratio (RR).ResultsFive randomised controlled trials on 388 patients qualified for the meta-analysis. There were 194 patients in the no-SGVD group and 194 patients in the SGVD group. No-SGVD was associated with shorter operative time and length of stay. In both fixed- and random-effects models, there were no statistically significant differences in laparoscopic to open conversion rate or complications between the two groups. Three trials presented data on 1-year follow-up, with 118 patients in the no-SGVD group and 112 patients in the SGVD group. There was no statistically significant difference in heartburn, dysphagia, regurgitation or gas bloat syndrome between these two groups. Two trials presented data on 10-year follow-up, with 84 patients in the no-SGVD group and 86 patients in the SGVD group. There was no significant difference in heartburn, dysphagia, regurgitation or gas bloat syndrome between these two groups either. There was no heterogeneity between trials.ConclusionsBased on this review, SGVD in LNF is associated with longer operative time and hospital stay. However, there is no difference in terms of functional outcomes for 1- and 10-year follow-up. Routine use of SGVD may therefore not be necessary in LNF.


Surgical Endoscopy and Other Interventional Techniques | 2008

Laparoscopic gastrectomy for gastric cancer: early experience among the elderly.

Krishna K. Singh; A. Rohatgi; Iryna Rybinkina; Peter McCulloch; Satvinder Mudan

BackgroundThe data are scarce on the outcome for elderly patients presenting with resectable gastric cancer in the West who have been treated with minimally invasive surgery. This report presents the authors’ early experience with totally laparoscopic gastric resections for cancer in elderly patients.MethodsA total of 20 patients underwent laparoscopic gastrectomy procedures: 14 distal, 5 subtotal, and 1 total gastrectomy. The male-to-female ratio was 15 to 5. The ages ranged from 75 to 88 years (mean, 80 years).ResultsAll cases were managed laparoscopically with R0 resection. Four patients needed high-dependency unit care postoperatively. There were no perioperative deaths. The median time required for the procedure was 212 min, and time to diet was 4 days. The hospital stay was 8 days. Four patients experienced significant complications, with two patients requiring reoperation. The pathology was adenocarcinoma for 17 patients and high-grade dysplasia for 3 patients. Conclusion: Among elderly patients for whom conventional gastric surgery carries a high morbidity and mortality risk, minimal access surgery may offer equivalent oncologic integrity but with superior safety and economy. The primary aim is to remove the tumor with at least a D1 lymphadenectomy.


Gastroenterology Report | 2013

Open transinguinal preperitoneal mesh repair of inguinal hernia: a targeted systematic review and meta-analysis of published randomized controlled trials.

Muhammad S. Sajid; L. Craciunas; Krishna K. Singh; P. Sains; M. K. Baig

Objective: The objective of this article is to systematically analyse the randomized, controlled trials comparing transinguinal preperitoneal (TIPP) and Lichtenstein repair (LR) for inguinal hernia. Methods: Randomized, controlled trials comparing TIPP vs LR were analysed systematically using RevMan® and combined outcomes were expressed as risk ratio (RR) and standardized mean difference. Results: Twelve randomized trials evaluating 1437 patients were retrieved from the electronic databases. There were 714 patients in the TIPP repair group and 723 patients in the LR group. There was significant heterogeneity among trials (P < 0.0001). Therefore, in the random effects model, TIPP repair was associated with a reduced risk of developing chronic groin pain (RR, 0.48; 95% CI, 0.26, 0.89; z = 2.33; P < 0.02) without influencing the incidence of inguinal hernia recurrence (RR, 0.18; 95% CI, 0.36, 1.83; z = 0.51; P = 0.61). Risk of developing postoperative complications and moderate-to-severe postoperative pain was similar following TIPP repair and LR. In addition, duration of operation was statistically similar in both groups. Conclusion: TIPP repair for inguinal hernia is associated with lower risk of developing chronic groin pain. It is comparable with LR in terms of risk of hernia recurrence, postoperative complications, duration of operation and intensity of postoperative pain.


Cases Journal | 2009

An unusual gall-bladder polyp - site of metastatic renal cell carcinoma: a case report

Sandeep Patel; Bassel Zebian; Shashank Gurjar; Nevil Pavithran; Krishna K. Singh; Tom Liston; Jerry Grant

We report the case of a 64 year old woman who presented with symptomatology of gallstone disease but was radiologically shown to have a polyp within the gallbladder. Upon resection this was shown to be a metastasis from renal cell carcinoma for which she had had a nephrectomy six years previously.


World Journal of Gastrointestinal Endoscopy | 2015

Systematic review and meta-analysis on the prophylactic role of non-steroidal anti-inflammatory drugs to prevent post-endoscopic retrograde cholangiopancreatography pancreatitis

Muhammad S. Sajid; Amir H. Khawaja; Mazin Sayegh; Krishna K. Singh; Zinu Philipose

AIM To critically appraise the published randomized, controlled trials on the prophylactic effectiveness of the non-steroidal anti-inflammatory drugs (NSAIDs), in reducing the risk of post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis. METHODS A systematic literature search (MEDLINE, Embase and the Cochrane Library, from inception of the databases until May 2015) was conducted to identify randomized, clinical trials investigating the role of NSAIDs in reducing the risk of post-ERCP pancreatitis. Random effects model of the meta-analysis was carried out, and results were presented as odds ratios (OR) with corresponding 95%CI. RESULTS Thirteen randomized controlled trials on 3378 patients were included in the final meta-analysis. There were 1718 patients in the NSAIDs group and 1660 patients in non-NSAIDs group undergoing ERCP. The use of NSAIDs (through rectal route or intramuscular route) was associated with the reduced risk of post-ERCP pancreatitis [OR, 0.52 (0.38-0.72), P = 0.0001]. The use of pre-procedure NSAIDs was effective in reducing approximately 48% incidence of post-ERCP pancreatitis, number needed to treat were 16 with absolute risk reduction of 0.05. But the risk of post-ERCP pancreattis was reduced by 55% if NSAIDs were administered after procedure. Similarly, diclofenac was more effective (55%) prophylactic agent compared to indomethacin (41%). CONCLUSION NSAIDs seem to have clinically proven advantage of reducing the risk of post-ERCP pancreatitis.


Gastroenterology Report | 2013

Use of antibacterial sutures for skin closure in controlling surgical site infections: a systematic review of published randomized, controlled trials

Muhammad S. Sajid; L. Craciunas; P. Sains; Krishna K. Singh; M. K. Baig

Objective: The objective of this article is to systematically analyse the randomized, controlled trials that compare the use of antibacterial sutures (ABS) for skin closure in controlling surgical site infections. Methods: Randomized, controlled trials on surgical patients comparing the use of ABS for skin closure in controlling the surgical site infections were analysed systematically using RevMan® and combined outcomes were expressed as odds ratios (OR) and standardized mean differences (SMD). Results: Seven randomized, controlled trials evaluating 1631 patients were retrieved from electronic databases. There were 760 patients in the ABS group and 871 patients in the simple suture group. There was moderate heterogeneity among trials (Tau2 = 0.12; chi2 = 8.40, df = 6 [P < 0.01]; I2 = 29%). Therefore in the random-effects model, the use of ABS for skin closure in surgical patients was associated with a reduced risk of developing surgical site infections (OR, 0.16; 95% CI, 0.37, 0.99; z = 2.02; P < 0.04) and postoperative complications (OR, 0.56; 95% CI, 0.32, 0.98 z = 2.04; P = 0.04). The durations of operation and lengths of hospital stay were similar following the use of ABS and SS for skin closure in patients undergoing various surgical procedures. Conclusion: Use of ABS for skin closure in surgical patients is effective in reducing the risk of surgical site infection and postoperative complications. ABS is comparable with SS in terms of length of hospital stay and duration of operation.


Surgical Endoscopy and Other Interventional Techniques | 2003

Recurrent small bowel obstruction after laparoscopic surgery for gallstone ileus.

R. Hagger; S. Sadek; Krishna K. Singh

Gallstone ileus is an uncommon cause of small bowel obstruction. A patient presenting with gallstone ileus was managed in our department by laparoscopic enterolithotomy. Postoperatively, the patient developed recurrent small bowel obstruction due to the presence of a second gallstone. It is therefore important to exclude the possibility of multiple gallstones at the initial operation.


International Journal of Surgery Case Reports | 2015

Laparoscopic management of a cystic artery pseudoaneurysm in a patient with calculus cholecystitis.

Sofronis Loizides; Asad Ali; Richard Newton; Krishna K. Singh

Highlights • Pseudoaneurysm of the cystic artery following acute cholecystitis is rare.• It can be safely managed laparoscopically with simultaneous cholecystectomy.• This avoids multiple invasive procedures and decreases morbidity associated with open surgery.


Indian Journal of Surgery | 2015

Laparoscopic Versus Open Preperitoneal Mesh Repair of Inguinal Hernia: an Integrated Systematic Review and Meta-analysis of Published Randomized Controlled Trials.

Muhammad S. Sajid; Jennifer F. Caswell; Krishna K. Singh

The objective of this article is to systematically analyse the randomized, controlled trials comparing open (OPPR) versus laparoscopic (LPPR) preperitoneal mesh repair of inguinal hernia. Randomized, controlled trials comparing OPPR versus LPPR of inguinal hernia were analysed systematically using RevMan®, and combined outcomes were expressed as odds ratio (OR) and standardized mean difference (SMD). Ten randomized trials evaluating 1286 patients were retrieved from the electronic databases. There were 606 patients in the OPPR repair group and 680 patients in the LPPR group. There was significant heterogeneity among trials (p < 0.0001). Therefore, in the random effects model, LPPR was associated with longer operative time and relatively lesser postoperative pain in the case of the trans-abdominal preperitoneal approach. Statistically, both OPPR and LPPR were equivalent in terms of developing chronic groin pain, recurrence and postoperative complications. OPPR of inguinal hernia is associated with shorter operative time and comparable with LPPR (both total extraperitoneal and trans-abdominal preperitoneal approaches) in terms of risk of chronic groin pain, recurrence and complications.

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